dawidwys edited a comment on issue #11694: [FLINK-17064][table-planner] Improve literals conversion in ExpressionConverter URL: https://github.com/apache/flink/pull/11694#issuecomment-613519108 @twalthr I updated the PR. I found it hard adding new cases in the `ValueLiteralExpression#getValue` so I tried to factor it out slightly to a more declarative approach in `LiteralConversions`. I am not entirely sure if it is a better approach so if you don't like this approach I can switch back to `if else ` statements. BTW I noticed the comment: > * <p>Note to implementers: Whenever we add a new class here, make sure to also update the planner > * for supporting the class via {@link CallContext#getArgumentValue(int, Class)}. and I am not entirely sure now what does it mean. Does it mean that we need to support all the possible conversion classes meaning we need a conversion `TIME (TimeString -> Long & Int)` which are currently missing?
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